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City ZIP codes · Delaware

Wilmington, DE ZIP Codes

25 ZIP codes use the postal name Wilmington, Delaware (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 10 residential and 15 for PO boxes or a single organization. Median household income runs from $52,810 in 19801 to $153,341 in 19807, 2.9 times as much (Census Bureau, ACS 2020-2024). Wilmington's most populous ZIP code is 19805, with 41,402 people (ACS 2020-2024); 30% of its land is in the city of Wilmington.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Wilmington's ZIP codes?

19801: $53k median household income19802: $54k median household income19803: $135k median household income19804: $80k median household income19805: $60k median household income19806: $89k median household income19807: $153k median household income19808: $94k median household income19809: $81k median household income19810: $113k median household income1980719808198031980919804198101980119805198021980619801: $53k median household income19802: $54k median household income19803: $135k median household income19804: $80k median household income19805: $60k median household income19806: $89k median household income19807: $153k median household income19808: $94k median household income19809: $81k median household income19810: $113k median household income1980719808198031980919804198101980119805198021980619801: $53k median household income19802: $54k median household income19803: $135k median household income19804: $80k median household income19805: $60k median household income19806: $89k median household income19807: $153k median household income19808: $94k median household income19809: $81k median household income19810: $113k median household income1980719808198031980919804198101980119805
The 10 residential ZIP codes named Wilmington, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are Wilmington's ZIP codes?

The highest median household income is in 19807 ($153,341), the lowest in 19801 ($52,810). Home values run from $194,600 in 19802 to $936,900 in 19807.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).

All 10 residential ZIP codes of Wilmington

Residential ZIP codes with the postal name Wilmington, DE, largest first (ACS 2020-2024); sort by any column
County
19805 New Castle County 41,402 7,503 $60k $237k
19808 New Castle County 39,082 2,842 $94k $338k
19810 New Castle County 26,530 3,360 $113k $441k
19802 New Castle County 26,051 7,477 $54k $195k
19803 New Castle County 22,279 1,760 $135k $457k
19804 New Castle County 18,779 2,617 $80k $264k
19801 New Castle County 16,327 3,713 $53k $200k
19809 New Castle County 14,311 2,118 $81k $315k
19806 New Castle County 9,777 5,734 $89k $386k
19807 New Castle County 7,815 430 $153k $937k

Download the 25 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

PO Box and single-organization ZIP codes in Wilmington

15 ZIP codes named Wilmington have no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.

Wilmington, DE: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIPCounty
19850New Castle County
19880New Castle County
19884New Castle County
19885New Castle County
19886New Castle County
19890New Castle County
19891New Castle County
19892New Castle County
19893New Castle County
19894New Castle County
19895New Castle County
19896New Castle County
19897New Castle County
19898New Castle County
19899New Castle County

Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.

Which counties do Wilmington's ZIP codes reach?

Wilmington's residential ZIP codes lie in New Castle County.

Which places do Wilmington's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Wilmington's residential ZIP codes cover Wilmington itself and 10 other places, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).

Which first three digits do Wilmington's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Wilmington starts with 198.

Three-digit prefixes of Wilmington's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Wilmington's
PrefixSectional centerHereAll codes
198 Wilmington, DE (SCF 197) 25 25

All 25 ZIP codes that start with 198 are Wilmington's: 10 residential codes and 15 PO Box or unique codes, sorted at Wilmington, DE (SCF 197).

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.